A three-layer composite paper straw and a method for producing the same are revealed. Basically the paper straw is made from composite paper with three layers of composite paper spirally wound and adhered in a staggered and overlapping manner. A first layer of paper, a second layer of paper and a third layer of paper of the three layers of composite paper form the outermost layer, the intermediate layer and the inner layer of the paper straw respectively. The first and the third layers of paper are stone paper while the second layer of paper is long fiber pulp paper. The three layers of paper are stacked on top of one another in turn with the long side thereof overlapping like tiles and then adhered to one another. The paper straw is eco-friendly, recyclable, with good structure strength and easy to produce.

The invention relates to a sealant antifog composition for polyester films comprising anionic and non-ionic surfactants in a mixture of amorphous and (semi)crystalline polyesters. The invention also relates to a multi-layer film comprising a sealant layer having the above composition, to the use of said films in food packaging and to the packages obtained therefrom.

Heat de-bondable adhesive articles include a heat-shrinkable optical substrate with optically clear adhesive disposed on the two major surfaces of the heat-shrinkable substrate. Optical articles can be prepared by disposing the heat de-bondable adhesive articles between two optical substrates. Other optical articles can be prepared by disposing an optically clear adhesive layer and a heat-shrinkable optical substrate on an optical substrate.

A multilayer film including an odor barrier layer having sound dampening properties is provided. The odor barrier layer is formed from a polyamide modified with a functionalized vinyl-bond rich triblock copolymer.

A laminate and a method for forming the laminate. The formation of the laminate may include attaching an inner polyolefin layer (104) and an outer polyolefin layer (106) to a barrier layer (102), wherein the barrier layer (102) is interposed between the outer and inner polyolefin layers. The formation of the laminate may further include forming a holographic film including a backing layer, a release layer (204), an adhesive layer (206), a holographic grating layer (208), a reflective layer (210), and a protective coating (212). The holographic film may be attached to the outer polyolefin layer (106) using a transfer adhesive (300). Subsequently, the backing layer may be removed from the release layer (204), then the release layer (204) may be primed, for example, by forming a primer overcoat layer on the release layer (204). A patterned layer (700), for example, text and/or graphics, may be formed on the primer layer (600), then a varnish layer (702) may be formed on the patterned layer (700).

The present disclosure provides a curved film for a mobile phone. The curved film from top to bottom includes in sequence a curved glass layer, a thermoplastic urethane (TPU) layer, an explosion-proof film and an adhesive layer. The technical scheme provided by the present disclosure has benefits of shock proofing and low cost.

A rubber hose includes an inner rubber layer, a first braided layer formed on the inner rubber layer by braiding plural first multiple wound yarn materials in a three-over, three-under pattern formed by bundling plural first yarn materials including a dry vinylon, a second braided layer formed on the first braided layer by braiding plural second multiple wound yarn materials formed by bundling plural second yarn materials, and an outer rubber layer formed on the second braided layer. The young modulus of the first yarn material is not less than 17 GPa and not more than 26 GPa, and a breaking elongation of the first yarn material is not less than 5% and not more than 12%, and an adhesive force between the outer rubber layer and the second braided layer is not less than 10 N/cm and not more than 30 N/cm.

Composite membranes comprised of at least two layers, one of the layers being a silver ionomer and a second layer which is a fluorinated polymer with certain permeability properties, are especially useful for the separation of alkanes from alkenes, Particularly useful is a three-layer composite membrane in which a porous layer is laminated to the second layer.

A thin and high strength composite laminate includes a fabric, an elastic layer and a water-based polyurethane layer. The fabric is weaved by high-tenacity filament or high-tenacity monofilament. The high-tenacity filament or high-tenacity monofilament is made of polyethylene terephthalate (PET). The fabric has a first surface and a second surface opposite to the first surface. The elastic layer is laminated on the first surface of the fabric. The water-based polyurethane layer is laminated on the second surface of the fabric. In this way, a thin, anti-fouling, abrasion resistance and high physical strength composite laminate can be manufactured.

Described herein is a multilayer microporous film or membrane that may exhibit improved properties, including improved dielectric break down and strength, compared to prior monolayer or tri-layer microporous membranes of the same thickness. The preferred multilayer microporous membrane comprises microlayers and one or more lamination barriers. Also disclosed is a battery separator or battery comprising one or more of the multilayer microporous films or membranes. The inventive battery and battery separator is preferably safer and more robust than batteries and battery separators using prior monolayer and tri-layer microporous membranes. Also, described herein is a method for making the multilayer microporous separators, membranes or films described herein.